Patents by Inventor Jonas Bjorkstrom

Jonas Bjorkstrom has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for converting an up-flow tower for cellulose pulp to a down-flow tower
    Patent number: 7569120
    Abstract: The method is for converting a vertically standing up-flow tower by inserting a freely insertable pipe into the conical part of the up-flow tower the tower is converted to a down-flow tower where the tower can easily be restored to the up-flow tower and optimized with regards to a minimized stagnation volume in the tower. The upper open end of the pipe is disposed at a first distance (A) from the lower part of the conical inlet part. The first distance (A) is less than the total vertical extension (B) of the conical inlet part. The cellulose pulp establishes a self-forming stagnation zone around the pipe at a lower part of the down-flow tower.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: August 4, 2009
    Assignee: GLV Fiance Hungary Kft.
    Inventors: Jonas Bjorkstrom, Ulf Jansson
  • Device and method withdrawing cellulose pulp from a container
    Patent number: 7470347
    Abstract: This is a device and a method for withdrawing cellulose pulp with a pulp concentration of 8-14% from a cylindrical storage tower. The storage tower has a plane bottom and with a diameter that exceeds 3 meters. A pipe is arranged through the wall of the storage tower that is parallel to the bottom of the tower and directed towards the center of the tower. The pipe has at one of its ends an obliquely cut opening that faces upwards in the tower. The pipe is attached at its other end to an MC pump to be able to pump out cellulose pulp from the storage tower.
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: December 30, 2008
    Assignee: GLV Finance Hungary Kft., Luxembourg Branch
    Inventors: Ulf Jansson, Jonas Bjorkstrom
  • Device and method withdrawing cellulose pulp from a container
    Publication number: 20070151693
    Abstract: This is a device and a method for withdrawing cellulose pulp with a pulp concentration of 8-14% from a cylindrical storage tower. The storage tower has a plane bottom and with a diameter that exceeds 3 meters. A pipe is arranged through the wall of the storage tower that is parallel to the bottom of the tower and directed towards the center of the tower. The pipe has at one of its ends an obliquely cut opening that faces upwards in the tower. The pipe is attached at its other end to an MC pump to be able to pump out cellulose pulp from the storage tower.
    Type: Application
    Filed: December 13, 2004
    Publication date: July 5, 2007
    Inventors: Ulf Jansson, Jonas Bjorkstrom
  • Method for converting a tower for cellulose pulp and the tower itself
    Publication number: 20060191651
    Abstract: The method is for converting a vertically standing up-flow tower by inserting a freely insertable pipe into the conical part of the up-flow tower the tower is converted to a down-flow tower where the tower can easily be restored to the up-flow tower and optimized with regards to a minimized stagnation volume in the tower. The upper open end of the pipe is disposed at a first distance (A) from the lower part of the conical inlet part. The first distance (A) is less than the total vertical extension (B) of the conical inlet part. The cellulose pulp establishes a self-forming stagnation zone around the pipe at a lower part of the down-flow tower.
    Type: Application
    Filed: December 12, 2005
    Publication date: August 31, 2006
    Inventors: Jonas Bjorkstrom, Ulf Jansson